External flushing head

Both rock drills have been equipped with external flushing head, a feature that are now standard on all Atlas Copco tophammer rock drills that have extractor unit for back hammering in underground long-hole drilling.
The external flushing head gives improved serviceability when changing flushing seals, since the extractor unit does not have to be removed. This means that there is no need to re-torque the side bolts afterwards, and fewer tools are needed for the operation.

In addition, the external flushing head minimizes the risk of water intrusion on the rock drill, increasing the life of vital components.

Standard feature

“With this introduction, the external flushing head will be a standard feature on all rock drills equipped with extractor unit used on our Simba production drill rigs”, says Patrik Ericsson, Product Manager Production drill rigs at Atlas Copco. “In this way we are minimizing downtime and at the same time cutting spare parts costs.”
The new versions will replace the COP 1838MEX and the COP 1838HEX rock drills. An upgrade kit with external flushing head will be available for the old versions.

Atlas Copco Underground Rock Excavation is a division within Atlas Copco’s Construction and Mining Technique business area. It develops, manufactures, and markets a wide range of tunneling and mining equipment for various underground applications worldwide. The division focuses strongly on innovative product design and aftermarket support systems, which give added customer value. The divisional headquarters and main production center is in Örebro, Sweden.